Question

15. Calcule o valor de:
a) 7!
4!

b)
3!. 7!
4!. 6!

Answer 1

~Math

Explicação passo-a-passo:

15a.

$\sf a). \: \green { 7 !} = 7 \times 6 \times 5 \times 4 \times 3 \times 2 \times 1 = \red {5040}$

$\:$

$\sf a). \: \green { 4 !} = 4 \times 3 \times 2 \times 1 = \red {24}$

$\:$

15b.

$\sf = \green {3! \: . \: 7!}$

$\sf = (3 \times 2 \times 1) \times (7 \times 6 \times 5 \times 4 \times 3 \times 2 \times 1)$

$\sf = 6 \times 5040$

$\sf = \red {30.240}$

$\:$

$\sf = \green {4! \: . \: 6!}$

$\sf = (4 \times 3 \times 2 \times 1) \times (6 \times 5 \times 4 \times 3 \times 2 \times 1)$

$\sf = 24 \times 720$

$\sf = \red {17.280}$